Home / 877,131,630.36-1,315,685,047.26-213,150,530.52

Finding the Fourth Proportional to 877,131,630.36, 1,315,685,047.26 and 213,150,530.52

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Solution

The fourth proportional to 877,131,630.36, 1,315,685,047.26 and 213,150,530.52 is: 319,722,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,131,630.36 : 1,315,685,047.26 = 213,150,530.52 : x
  2. Step 2: Convert to fraction form
    877,131,630.36/1,315,685,047.26 = 213,150,530.52/x
  3. Step 3: Cross multiply
    877,131,630.36x = 1,315,685,047.26 × 213,150,530.52
  4. Step 4: Simplify right side
    877,131,630.36x = 280,438,965,820,700,288
  5. Step 5: Solve for x
    x = 280,438,965,820,700,288/877,131,630.36
  6. Step 6: Final answer
    x = 319,722,782.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.